Haines Brown (12024-01-08): > I find that often (such as wiki.debian.org/CDDVD) I'm told to mount
Please do not remove the protocol part from the URL, it makes auto-detection and copy-pasting more annoying. > the cdrive. I do not see this page suggesting to mount audio CDs. Audio CDs do not contain a files system, nor do they contain the synchronization information necessary for a reliable read. There is a hack in the kernel to mount them and present audio track as PCM files but it is a hack, I do not know if it is enabled by default and I do not recommend too use it. > But I can play cds without mounting. Wny is mounting > sometimes recommended? Either people are wrong to recommend it or you are mistaken in thinking they recommend it. > I wanted to use aplay to play music on cdrom, but have concluded > it cannot be done in any straightforward way. Why not? Because aplay requires the data to be available as a plain stream of octets and the kernel does not provide that interface for audio CDs. > The mplayer command $ mplayer -cdrom-device /dev/sr0 cdda:// works. On > my system it relies on alsa. However, about every 15 seconds the the > process stops for about one second ane the drive LED flashes on. In > the mplayer configuration I do D not see anything about buffer size. Search for “cache” in the man page. > To simplify my life, I created a ~/scripts/play file. It is in my > PATH. The file has this content: > > #!/bin/sh > > mplayer /dev/sr0 cdda:// > > exit 0 > > But the $ play command only returns the aplay -help info. Why won't > the script work? You forgot the “-cdrom-device” option. And judging from what you are saying you need to learn how $PATH works. But unless you cannot spare 60 megaoctets somewhere, save yourself a lot of trouble: just run cdparanoia -B then opusenc and put back the audio CD at the back of the shelf where it belongs. Regards, -- Nicolas George
